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Silver

LAN to LAN VPN through MPLS

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We have 2 sites HQ and Remote connected with MPLS as in the above picture.There are applications in DMZ s that need to talk to each other but the communication is going through the LAN (Remote DMZ- HQ LAN - HQ DMZ) but we don't want the DMZs talk to each other through the LAN.We want to configure a VPN tunnel between HQ and Remote Firewalls so that all the communication between the DMZs go through a VPN tunnel through MPLS through the LAN. Is this considered as a Layer2 VPN or the Layer 3 VPN model and also is there any special configuration that needs to be done on the firewalls other than normal site-site VPN config.

Thanks

Siddhartha
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Cisco Employee

LAN to LAN VPN through MPLS

It is Layer 3 VPN and no special configuration required on the firewall other than the normal site-to-site VPN. Just have to enable the isakmp and apply crypto map to the LAN interface.

2 REPLIES
Cisco Employee

LAN to LAN VPN through MPLS

It is Layer 3 VPN and no special configuration required on the firewall other than the normal site-to-site VPN. Just have to enable the isakmp and apply crypto map to the LAN interface.

Silver

LAN to LAN VPN through MPLS

Thanks Jennifer.

Siddhartha
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